US9127716B2 - Ball bearing - Google Patents

Ball bearing Download PDF

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Publication number
US9127716B2
US9127716B2 US14/273,951 US201414273951A US9127716B2 US 9127716 B2 US9127716 B2 US 9127716B2 US 201414273951 A US201414273951 A US 201414273951A US 9127716 B2 US9127716 B2 US 9127716B2
Authority
US
United States
Prior art keywords
cage
raceway groove
ball bearing
inner periphery
balls
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US14/273,951
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English (en)
Other versions
US20140341492A1 (en
Inventor
Shigeo Kamamoto
Junji Murata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JTEKT Corp
Original Assignee
JTEKT Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JTEKT Corp filed Critical JTEKT Corp
Assigned to JTEKT CORPORATION reassignment JTEKT CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KAMAMOTO, SHIGEO, MURATA, JUNJI
Publication of US20140341492A1 publication Critical patent/US20140341492A1/en
Application granted granted Critical
Publication of US9127716B2 publication Critical patent/US9127716B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/38—Ball cages
    • F16C33/3806—Details of interaction of cage and race, e.g. retention, centring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/38—Ball cages
    • F16C33/3887—Details of individual pockets, e.g. shape or ball retaining means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/38—Ball cages
    • F16C33/41—Ball cages comb-shaped
    • F16C33/412—Massive or moulded comb cages, e.g. snap ball cages
    • F16C33/414—Massive or moulded comb cages, e.g. snap ball cages formed as one-piece cages, i.e. monoblock comb cages
    • F16C33/416—Massive or moulded comb cages, e.g. snap ball cages formed as one-piece cages, i.e. monoblock comb cages made from plastic, e.g. injection moulded comb cages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/20—Application independent of particular apparatuses related to type of movement
    • F16C2300/22—High-speed rotation

Definitions

  • FIG. 3 is a perspective view of the cage
  • FIG. 4 is a perspective view illustrating an inner ring, balls and the cage of the ball bearing from which an outer ring is omitted;
  • FIG. 5 is a schematic view illustrating part of the ball bearing in FIG. 4 , as viewed from the outside in the radial direction;
  • FIG. 2 is a schematic sectional view taken along a plane extending in the axial direction and passing through one of the cage bars 42 of the cage 4 of the ball bearing.
  • the outer ring 1 has an inner periphery raceway groove 11 , one side groove shoulder 12 and the other side groove shoulder 13 .
  • the one side groove shoulder 12 is located on one side of the inner periphery raceway groove 11 in the axial direction.
  • the other side groove shoulder 13 is located on the other side of the inner periphery raceway groove 11 in the axial direction.
  • the one side groove shoulder 12 is connected to one end portion of the inner periphery raceway groove 11 on the one side in the axial direction.
  • the other side groove shoulder 13 is connected to the other end portion of the inner periphery raceway groove 11 on the other side in the axial direction.
  • the inner ring 2 has an outer periphery raceway groove 21 , one side groove shoulder 22 and the other side groove shoulder 23 .
  • the one side groove shoulder 22 is located on one side of the outer periphery raceway groove 21 in the axial direction.
  • the other side groove shoulder 23 is located on the other side of the outer periphery raceway groove 21 in the axial direction.
  • the one side groove shoulder 22 is connected to one end portion of the outer periphery raceway groove 21 on the one side in the axial direction.
  • the other side groove shoulder 23 is connected to the other end portion of the outer periphery raceway groove 21 on the other side in the axial direction.
  • the outer periphery raceway groove 21 is formed through super finishing. Thus, the face roughness of the outer periphery raceway groove 21 is reduced to prolong the service life of the balls 3 that roll on the outer periphery raceway groove 21 . Both the one side groove shoulder 22 and the other side groove shoulder 23 are not subjected to super finishing.
  • the outer periphery raceway groove 21 has an arithmetic average roughness Ra that is substantially equal to the arithmetic average roughness Ra of the inner periphery raceway groove 11 .
  • the arithmetic average roughness Ra of the outer periphery raceway groove 21 is smaller than that of an outer peripheral face of the one side groove shoulder 22 , and is also smaller than that of an outer peripheral face of the other side groove shoulder 23 .
  • the balls 3 are placed in one of the state where each ball 3 is brought into contact, at only one point, with the cage bar 42 located on one side of the ball 3 in the circumferential direction, or the state where each ball 3 is not in contact at all with the two cage bars 42 on respective sides of the ball 3 in the circumferential direction.
  • a larger space is ensured between the ball 3 and the ball holding portion 46 , and thus a larger amount of grease is retained between the ball 3 and the ball holding portion 46 .
  • FIG. 6 is a perspective view illustrating a conventional ball bearing including a known ribbon cage 104 (rivets are not illustrated), FIG. 6 corresponding to FIG. 4 .
  • FIG. 7 is a perspective view illustrating a conventional ball bearing including a known snap cage 204 , FIG. 7 corresponding to FIG. 4 .
  • the cage 4 is guided by the inner periphery raceway groove 11 of the outer ring 1 .
  • the manufacturing cost of the ball bearing according to the above-described embodiment is lower than that of the ball bearing in which the cage is guided by the shoulders of the inner periphery raceway groove.
  • it is possible to suitably use the ball bearing according to the above-described embodiment for example, in home electric appliances for which considerable cost reduction is demanded.
  • the arithmetic average roughness Ra of the outer periphery raceway groove 21 of the inner ring 2 is smaller than that of the outer peripheral faces of the shoulders 22 , 23 of the outer periphery raceway groove 21 of the inner ring 2 .
  • the arithmetic average roughness Ra of the outer periphery raceway groove 21 of the inner ring 2 may be substantially equal to that of the outer peripheral faces of the shoulders 22 , 23 of the outer periphery raceway groove 21 of the inner ring 2 .
  • each of the balls 3 is brought into contact with the cage bar 42 at only one point.
  • each of the balls 3 may be brought into contact with the cage bar 42 at two or more points or at a surface. It is needless to say that it is preferable that each ball is brought into point contact with the cage bar rather than being brought into surface contact with the cage bar in view of reduction of the contact torque and the agitation torque. Further, it is needless to say that it is most preferable that each ball is brought into contact with the cage bar at only one point in view of reduction of the contact torque and the agitation torque.
  • raceway grooves 11 , 21 are subjected to super finishing.
  • the raceway grooves may be subjected to any known grindings other than super finishing.
  • the circumferential thickness of the end portion 80 of each cage bar 42 in is smaller than that of the other portion of the cage bar 42 to make it easier to fit the cage 4 to the outer ring 1 . That is, the circumferential thickness of the cage bar 42 is varied from position to position in the cage bar 42 .
  • the circumferential thickness of each cage bar may be set substantially uniform regardless of a position in the cage bar 42 , or the circumferential thickness of each cage bar may be varied in any manner.
  • a recess such as a cutout may be formed as needed to lower the stiffness of the cage, so that the degree of elastic deformation of the cage is increased.
  • a recess may be formed in each cage bar of the cage, at a position near a portion of the cage bar, which is connected to the annular portion.
  • the ball bearing configured such that the torque is reduced to suppress the operation costs, and able to operate at higher rotational speeds.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
US14/273,951 2013-05-17 2014-05-09 Ball bearing Expired - Fee Related US9127716B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013105113A JP2014224592A (ja) 2013-05-17 2013-05-17 玉軸受
JP2013-105113 2013-05-17

Publications (2)

Publication Number Publication Date
US20140341492A1 US20140341492A1 (en) 2014-11-20
US9127716B2 true US9127716B2 (en) 2015-09-08

Family

ID=50687368

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/273,951 Expired - Fee Related US9127716B2 (en) 2013-05-17 2014-05-09 Ball bearing

Country Status (4)

Country Link
US (1) US9127716B2 (de)
EP (1) EP2811188B1 (de)
JP (1) JP2014224592A (de)
CN (1) CN104165183A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170023060A1 (en) * 2015-07-24 2017-01-26 Jtekt Corporation Ball bearing
US20170023062A1 (en) * 2015-07-24 2017-01-26 Jtekt Corporation Ball Bearing
US9829042B2 (en) * 2013-05-21 2017-11-28 Schaeffler Technologies AG & Co. KG Rolling element bearing with cage
US10054155B2 (en) * 2016-01-19 2018-08-21 Jtekt Corporation Ball bearing
US11335523B2 (en) 2019-06-04 2022-05-17 Hubbell Incorporated Support for electrical switch
US12031581B1 (en) * 2017-07-10 2024-07-09 Hubbell Incorporated Bearing assembly for electrical switch

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6903871B2 (ja) * 2016-03-15 2021-07-14 株式会社ジェイテクト 玉軸受
DE102019106495A1 (de) * 2019-03-14 2020-09-17 Schaeffler Technologies AG & Co. KG Wälzlager
JP2021167649A (ja) 2020-04-13 2021-10-21 株式会社ジェイテクト 転がり軸受

Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB545043A (en) 1940-08-06 1942-05-08 Ransome And Marles Bearing Com Improvements in or relating to cages for use in ball bearings
US3135564A (en) * 1961-12-27 1964-06-02 Gen Electric Anti-friction bearing and method of making same
US3506316A (en) * 1968-04-16 1970-04-14 Barden Corp Ball bearing cage
JPS5538021U (de) 1978-09-05 1980-03-11
US4534871A (en) * 1980-03-24 1985-08-13 Skf Industries, Inc. Lubricant insert for rolling bearings
US4916751A (en) * 1988-02-29 1990-04-10 Nippon Seiko Kabushiki Kaisha Rolling bearing
WO1993009357A1 (de) * 1991-11-08 1993-05-13 Ina Wälzlager Schaeffler Kg Wälzlagerkäfig für vollrollige radialwälzlager
JPH0949525A (ja) 1995-05-30 1997-02-18 Ntn Corp 固体潤滑転がり軸受
JP2615959B2 (ja) * 1989-01-11 1997-06-04 日本精工株式会社 自動調心ころ軸受
JP2003113843A (ja) * 2001-10-05 2003-04-18 Nsk Ltd 転がり軸受およびその製造方法
WO2003095855A1 (en) * 2002-05-14 2003-11-20 Koyo Seiko Co., Ltd. Method of producing bearing raceway member
US6799896B2 (en) * 2002-09-19 2004-10-05 Delphi Technologies, Inc. Separator grease retention and feed system for wheel spindle bearings
US20040211638A1 (en) * 2003-04-23 2004-10-28 Tetsuo Ikeda One-way clutch integrated with a rolling bearing, and method of producing the same
JP2004340277A (ja) 2003-05-15 2004-12-02 Nsk Ltd 転がり軸受用冠形保持器及び転がり軸受
US20050207688A1 (en) * 2004-03-16 2005-09-22 Timken Gmbh Radial roller bearing
US20070292064A1 (en) * 2006-06-20 2007-12-20 Jtekt Corporation Rolling bearing and cage for rolling bearing
JP2010090912A (ja) * 2008-10-03 2010-04-22 Jtekt Corp 円筒ころ軸受
EP2287482A1 (de) * 2008-06-17 2011-02-23 JTEKT Corporation Zylinderförmiges kugellager
US20120141061A1 (en) * 2009-06-12 2012-06-07 Bruno Montboeuf suspension stop and a motor vehicle fitted with such a stop

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US3397019A (en) * 1966-06-23 1968-08-13 Gen Motors Corp Separator
JPS5362553U (de) * 1976-10-28 1978-05-26
JPS596264Y2 (ja) * 1978-04-24 1984-02-27 日本精工株式会社 ころがり軸受用プラスチツク保持器
JPS5835860Y2 (ja) * 1979-06-12 1983-08-12 株式会社不二越 シ−ル付きラジアル玉軸受用保持器
JP4308490B2 (ja) * 2002-07-25 2009-08-05 中西金属工業株式会社 転がり軸受用保持器部品の製造方法
DE102006030836B4 (de) * 2006-07-04 2012-03-01 Gebrüder Reinfurt GmbH & Co. KG Wälzlagerkäfig
JP2008164094A (ja) * 2006-12-28 2008-07-17 Nsk Ltd 深溝玉軸受
CN101675259B (zh) * 2007-04-04 2011-12-28 Ntn株式会社 车轮用轴承及具有该车轮用轴承的车轮用轴承装置
JP2009275871A (ja) * 2008-05-16 2009-11-26 Ntn Corp スイングアーム用軸受
JP2010156455A (ja) * 2008-12-04 2010-07-15 Jtekt Corp 転がり軸受装置

Patent Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB545043A (en) 1940-08-06 1942-05-08 Ransome And Marles Bearing Com Improvements in or relating to cages for use in ball bearings
US3135564A (en) * 1961-12-27 1964-06-02 Gen Electric Anti-friction bearing and method of making same
US3506316A (en) * 1968-04-16 1970-04-14 Barden Corp Ball bearing cage
JPS5538021U (de) 1978-09-05 1980-03-11
US4534871A (en) * 1980-03-24 1985-08-13 Skf Industries, Inc. Lubricant insert for rolling bearings
US4916751A (en) * 1988-02-29 1990-04-10 Nippon Seiko Kabushiki Kaisha Rolling bearing
JP2615959B2 (ja) * 1989-01-11 1997-06-04 日本精工株式会社 自動調心ころ軸受
WO1993009357A1 (de) * 1991-11-08 1993-05-13 Ina Wälzlager Schaeffler Kg Wälzlagerkäfig für vollrollige radialwälzlager
JPH0949525A (ja) 1995-05-30 1997-02-18 Ntn Corp 固体潤滑転がり軸受
JP2003113843A (ja) * 2001-10-05 2003-04-18 Nsk Ltd 転がり軸受およびその製造方法
WO2003095855A1 (en) * 2002-05-14 2003-11-20 Koyo Seiko Co., Ltd. Method of producing bearing raceway member
US6799896B2 (en) * 2002-09-19 2004-10-05 Delphi Technologies, Inc. Separator grease retention and feed system for wheel spindle bearings
US20040211638A1 (en) * 2003-04-23 2004-10-28 Tetsuo Ikeda One-way clutch integrated with a rolling bearing, and method of producing the same
JP2004340277A (ja) 2003-05-15 2004-12-02 Nsk Ltd 転がり軸受用冠形保持器及び転がり軸受
US20050207688A1 (en) * 2004-03-16 2005-09-22 Timken Gmbh Radial roller bearing
US20070292064A1 (en) * 2006-06-20 2007-12-20 Jtekt Corporation Rolling bearing and cage for rolling bearing
EP2287482A1 (de) * 2008-06-17 2011-02-23 JTEKT Corporation Zylinderförmiges kugellager
JP2010090912A (ja) * 2008-10-03 2010-04-22 Jtekt Corp 円筒ころ軸受
US20120141061A1 (en) * 2009-06-12 2012-06-07 Bruno Montboeuf suspension stop and a motor vehicle fitted with such a stop

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Nov. 26, 2014 Search Report issued in European Patent Application No. 14 16 8088.

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9829042B2 (en) * 2013-05-21 2017-11-28 Schaeffler Technologies AG & Co. KG Rolling element bearing with cage
US20170023060A1 (en) * 2015-07-24 2017-01-26 Jtekt Corporation Ball bearing
US20170023062A1 (en) * 2015-07-24 2017-01-26 Jtekt Corporation Ball Bearing
US10001167B2 (en) * 2015-07-24 2018-06-19 Jtekt Corporation Ball bearing
US10151346B2 (en) * 2015-07-24 2018-12-11 Jtekt Corporation Ball bearing
US10054155B2 (en) * 2016-01-19 2018-08-21 Jtekt Corporation Ball bearing
US12031581B1 (en) * 2017-07-10 2024-07-09 Hubbell Incorporated Bearing assembly for electrical switch
US20240318689A1 (en) * 2017-07-10 2024-09-26 Hubbell Incorporated Bearing assembly for electrical switch
US11335523B2 (en) 2019-06-04 2022-05-17 Hubbell Incorporated Support for electrical switch

Also Published As

Publication number Publication date
JP2014224592A (ja) 2014-12-04
US20140341492A1 (en) 2014-11-20
CN104165183A (zh) 2014-11-26
EP2811188A2 (de) 2014-12-10
EP2811188B1 (de) 2017-08-02
EP2811188A3 (de) 2014-12-24

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Effective date: 20190908